The interest rate of car loan is 1. The interest rate of a normal car loan is usually between 0.5% and 0.9% per month, that is, the monthly interest rate is between 5 and 9 miles. The calculation of interest is usually based on the number of months of installment, and the total interest during this period is calculated;

2. The interest calculation formula of equal principal and interest is: monthly principal and interest repayment amount = [principal x monthly interest rate x( 1+ monthly interest rate) loan months]/[(1+monthly interest rate) repayment months-1] monthly interest = residual principal x monthly interest rate;

3. The interest calculation formula of average capital is: monthly repayment amount = (principal/repayment months)+(principal-accumulated repaid principal) × monthly interest rate monthly principal = total principal/repayment months interest = (principal-accumulated repaid principal )× monthly interest rate repayment amount = (repayment months+1)× loan amount× monthly interest rate /2.

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